Isopropanol hydrochloride → (S)-2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoro-N-(piperidin-3-yl)pyrimidin-4-amine

Participants

Reaction Conditions

Reaction Steps

To a suspension of tert-butyl (3S)-3-[[2-(5-chloro-1H-pyrrolo[5,4-b]pyridin-3-yl)-5-fluoro-pyrimidin-4-yl]amino]piperidine-1-carboxylate, 2b, (0.45 g, 1.01 mmol) in isopropanol (3 mL) was added propan-2-ol hydrochloride (1.5 mL of 5M solution, 7.500 mmol). The reaction mixture was warmed to 80° C. and stirred for 3 hours. The mixture was cooled to room temperature and all volatiles were removed at reduced pressure. The resulting crude product, 5b, was used without further purification.

Provenance & Evidence